Accessory for handheld device

ABSTRACT

The present disclosure provides an accessory for a handheld device. The accessory includes a first base, a second base, a first flexible element and a second flexible element. The first flexible element and the second flexible element are respectively disposed at the first base. The first flexible element has a first track. The second flexible element has a second track. The second base has a fastener for engaging with the first track and the second track. The first flexible element is flexed based on sliding of the fastener along the first track. The second flexible element is flexed based on sliding of the fastener along the second track.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a divisional of U.S. application Ser. No.17/469,131, filed on Sep. 8, 2021. Priority is claimed based upon U.S.application Ser. No. 17/469,131, filed on Sep. 8, 2021, which claims thepriority date of Taiwan patent application Ser. No. 110120510 filed onJun. 4, 2021, all of which is hereby incorporated by reference in itsentirety.

TECHNICAL FIELD

The present invention relates to a handheld device, and moreparticularly, to an accessory for a handheld device.

DISCUSSION OF THE BACKGROUND

Most handheld devices nowadays provide diverse entertainment functions,such as audio/video playback, electronic book display and electronicgames, and users need to continually hold such devices in their handwhile using the device. However, a handheld device may fall and becomedamaged due to carelessness when being used in a handheld manner, andthe handheld device often cannot be adjusted for a most appropriateviewing angle when being used in a fixed manner. Therefore, there is aneed for an additional accessory for the handheld device to overcome theabovementioned issues.

SUMMARY

In view of the above, an objective of the present invention is toprovide an accessory for improving the convenience of use of a handhelddevice.

Accordingly, the present invention provides an accessory for a handhelddevice. The accessory includes a first base, a second base, a firstflexible element and a second flexible element. The first flexibleelement and the second flexible element are respectively disposed at thefirst base. The first flexible element has a first track. The secondflexible element has a second track. The second base has a fastener forengaging with the first track and the second track. The first flexibleelement is flexed based on sliding of the fastener along the firsttrack. The second flexible element is flexed based on sliding of thefastener along the second track.

In some embodiments, one end of the first flexible element is disposedat one end of the first base, and one end of the second flexible elementis disposed at another end of the first base.

In some embodiments, the first flexible element and the second flexibleelement are located between the first base and the second base, and whenthe first base and the second base are adjoining, the first flexibleelement and the second flexible element are placed in an accommodatingspace of the second base.

In some embodiments, the accommodating space is formed at a recess ofthe second base, and a depth of one end of the recess is different froma depth of another end of the recess.

In some embodiments, the first flexible element and the second flexibleelement are located between the first base and the second base, and whenthe first base and the second base are adjoining, the first flexibleelement and the second flexible element are placed in a firstaccommodating space of the first base and a second accommodating spaceof the second base, respectively.

In some embodiments, the first accommodating space includes a firstrecess formed in the first base, and the second accommodating spaceincludes a second recess formed in the second base. The second recesscontains an annular projection at a periphery of the second recess, theannular projection protrudes toward the first base, and the first recessaccommodates the annular projection.

In some embodiments, the first track includes a hollow portion formed inthe first flexible element, and the second track includes a hollowportion formed in the second flexible element.

In some embodiments, the fastener passes through the hollow portion ofthe first flexible element and the hollow portion of the second flexibleelement so as to engage with the first track and the second track.

In some embodiments, the first track includes a hollow portion formed inthe first flexible element, and the second track includes a grooveformed in the second flexible element.

In some embodiments, the fastener passes through the hollow portion ofthe first flexible element and is inserted into the groove of the secondflexible element so as to engage with the first track and the secondtrack.

In some embodiments, the second base has a body and a baffle, the bodyand the baffle define a space therebetween, and the fastener is disposedat the baffle in the space.

In some embodiments, the body is provided with a hollow portion at aposition corresponding to the baffle.

In some embodiments, the first track has at least one first positioningelement, the second track has at least one second positioning element,and the at least one first positioning element and the at least onesecond positioning element are for positioning the fastener.

In some embodiments, the at least one first positioning element and theat least one second positioning element include a slot for positioning aprotrusion of the fastener.

In some embodiments, the first flexible element and the second flexibleelement include sheet-like structures.

In some embodiments, the first base or the second base includes a longstructure, and each of two lengthwise sides of the long structure has anindentation.

In some embodiments, the first base is provided with a recess foraccommodating a chip.

Another aspect of the present invention provides an accessory for ahandheld device. The accessory includes a first base, a second base andtwo flexible elements. The two flexible elements are respectivelydisposed on two ends of the first base, and each of the flexibleelements has a track. The second base has a fastener for engaging withthe tracks of the flexible elements. When a distance between the firstbase and the second base changes, the fastener slides along the tracksand the flexible elements are flexed.

Another aspect of the present invention provides an accessory for ahandheld device. The accessory includes a first base, a second base, afirst flexible element and a second flexible element. The first flexibleelement and the second flexible element are respectively disposed at thefirst base. The second base has a body and a baffle, the body and thebaffle define at least one space therebetween, and the first flexibleelement and the second flexible element pass through the at least onespace. The first flexible element and the second flexible element areflexed based on a change of a distance between the first base and thesecond base.

In some embodiments, the first flexible element has a fastener, thesecond flexible element has a track, and the track is engaged with thefastener.

In some embodiments, the at least one space includes a first space and asecond space, and the first flexible element and the second flexibleelement respectively pass through the first space and the second space.

In some embodiments, in the at least one space, the first flexibleelement is located between the baffle and the second flexible element,one end of the first flexible element is disposed at the first base,another end of the first flexible element has a first fastenerprotruding toward the second flexible element, one end of the secondflexible element is disposed at the first base, and another end of thesecond flexible element has a second fastener protruding toward thefirst flexible element.

In some embodiments, in the at least one space, the first flexibleelement is located between the baffle and the second flexible element,one end of the first flexible element is disposed at the first base,another end of the first flexible element has a first fastenerprotruding toward the baffle, one end of the second flexible element isdisposed at the first base, another end of the second flexible elementhas a second fastener protruding toward the body, and the body has atrack for engaging with the second fastener.

Another aspect of the present invention provides an accessory for ahandheld device. The accessory includes a first base, a support assemblyand a second base. The support assembly has a support body, a firstflexible element and a second flexible element. The support body isdisposed at the first base, the first flexible element is connected toone end of the support body, and the second flexible element isconnected to another end of the support body. The second base has a basebody and a baffle. The base body and the baffle define a spacetherebetween, and the first flexible element and the second flexibleelement pass through the space. The first flexible element and thesecond flexible element are flexed based on a change of a distancebetween the first base and the second base.

In some embodiments, the support body, the first flexible element andthe second flexible element are integrally formed.

In some embodiments, the support assembly further includes a firstconnecting element and a second connecting element. The first connectingelement covers a joint between the first flexible element and thesupport body, and the second connecting element covers a joint betweenthe first flexible element and the support body.

BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments are described in detail with the accompanying drawings belowto better understand the present invention. It should be noted that thefeatures of the present invention may not be drawn to scale. In fact,for the sake of clarity, sizes of the features may be increased ordecreased as appropriate.

FIG. 1A is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 1B is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 1C is a cross-sectional diagram of an accessory according to someembodiments of the present invention;

FIGS. 1D and 1E are operation schematic diagrams of an accessoryaccording to some embodiments of the present invention;

FIG. 1F is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 2A is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 2B is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 2C is a cross-sectional diagram of an accessory according to someembodiments of the present invention;

FIGS. 2D and 2E are operation schematic diagrams of an accessoryaccording to some embodiments of the present invention;

FIG. 3A is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 3B is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 3C is a cross-sectional diagram of an accessory according to someembodiments of the present invention;

FIGS. 3D and 3E are operation schematic diagrams of an accessoryaccording to some embodiments of the present invention;

FIG. 3F is a top view of a first flexible element according to someembodiments of the present invention;

FIG. 3G is an enlarged schematic diagram of a positioning element of afirst track positioning a fastener according to some embodiments of thepresent invention;

FIG. 3H is a top view of a second flexible element according to someembodiments of the present invention;

FIG. 3I is an enlarged schematic diagram of a positioning element of asecond track positioning a fastener according to some embodiments of thepresent invention;

FIG. 4A is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 4B is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 4C is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 4D is a cross-sectional diagram of an accessory according to someembodiments of the present invention;

FIGS. 4E and 4F are operation schematic diagrams of an accessoryaccording to some embodiments of the present invention;

FIG. 4G is a three-dimensional diagram of a second base according tosome embodiments of the present invention;

FIG. 4H is a cross-sectional diagram of a second base according to someembodiments of the present invention;

FIG. 4I is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 5A is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 5B is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 5C is a cross-sectional diagram of an accessory according to someembodiments of the present invention;

FIGS. 5D and 5E are operation schematic diagrams of an accessoryaccording to some embodiments of the present invention;

FIG. 6A is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 6B is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 6C is a schematic diagram of an accessory with a second baseremoved according to some embodiments of the present invention;

FIG. 6D is a cross-sectional diagram of an accessory according to someembodiments of the present invention;

FIGS. 6E and 6F are operation schematic diagrams of an accessoryaccording to some embodiments of the present invention;

FIG. 7A is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 7B is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 7C is a cross-sectional diagram of an accessory according to someembodiments of the present invention;

FIGS. 7D and 7E are operation schematic diagrams of an accessoryaccording to some embodiments of the present invention;

FIG. 7F is a partial enlarged diagram of an accessory according to someembodiments of the present invention;

FIG. 8A is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 8B is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 8C is a cross-sectional diagram of an accessory according to someembodiments of the present invention;

FIGS. 8D and 8E are operation schematic diagrams of an accessoryaccording to some embodiments of the present invention;

FIG. 9A is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 9B is a three-dimensional diagram of an accessory according to someembodiments of the present invention;

FIG. 9C is a three-dimensional diagram of a second base according tosome embodiments of the present invention;

FIG. 9D is a three-dimensional diagram of a second base engaged with asecond flexible element according to some embodiments of the presentinvention;

FIG. 9E is a cross-sectional diagram of an accessory according to someembodiments of the present invention;

FIGS. 9F and 9G are operation schematic diagrams of an accessoryaccording to some embodiments of the present invention;

FIG. 10A is a three-dimensional diagram of an accessory according tosome embodiments of the present invention;

FIG. 10B is a three-dimensional diagram of an accessory according tosome embodiments of the present invention;

FIG. 10C is a three-dimensional diagram of an accessory from anotherangle according to some embodiments of the present invention;

FIG. 10D is a cross-sectional diagram of an accessory according to someembodiments of the present invention;

FIGS. 10E and 10F are operation schematic diagrams of an accessoryaccording to some embodiments of the present invention;

FIG. 10G is a three-dimensional diagram of an accessory according tosome embodiments of the present invention;

FIG. 10H is a three-dimensional diagram of a first base according tosome embodiments of the present invention;

FIG. 10I is a three-dimensional diagram of an accessory according tosome embodiments of the present invention; and

FIG. 11 is a schematic diagram of an accessory attached to a handhelddevice according to some embodiments of the present invention.

DETAILED DESCRIPTION

The disclosure below provides various embodiments, or examples, forimplementing different features of the provided subject matter. Specificexamples of components and configurations are given in the descriptionbelow so as to simplify the present invention. It should be noted thatthe components and configurations are exemplary and are not intended tobe restrictive. In the description of the present invention below, afirst feature formed on or above a second feature may includeembodiments in which the first feature and the second feature are formedin direct contact, and may also include embodiments in which additionalfeatures are formed between the first feature and the second feature ina way such that the first feature and the second feature may not contactdirectly. Moreover, numerals and/or alphabetical symbols may be repeatedin the various embodiments of the present invention. Such repetition isintended for simplicity and clarity, and does not represent relationsbetween the embodiments and/or configurations.

Embodiments of the present invention are given in detail in thedescription below. However, it should be understood that the presentinvention provides numerous applicable concepts that can be extensivelyembodied in diversified specific scenarios. The specific embodiments areillustrative and are not to be construed as limitations to the scope ofthe present invention.

Further, for better description, relative spatial terms such as “below,”“under,” “above,” “an upper part,” “a lower part,” “left,” “right” andthe like may be used to describe the relation between one element orfeature and other element(s) or features(s) as shown in the drawings. Inaddition to the orientation depicted in the drawings, the relativespatial terms are also intended to cover different orientations of adevice in use or operation. An apparatus may be orientated by othermeans (rotated by 90 degrees or having another orientation), anddescriptive relative spatial terms used in the disclosure may also besimilarly and correspondingly interpreted. It should be understood that,when an element is “connected to” or “coupled to” another element, theelement may be directly connected or coupled to the another element, orthe two may be interposed with an element.

Numerical ranges and parameters for describing general ranges of thepresent invention are approximate values, and the values given in thespecific embodiments are reported as precisely as possible. However,some values inevitably contain certain errors caused by standard errorsdiscovered in measured values of individual tests. Moreover, the term“about” or ‘approximately” used in the disclosure usually means that avalue is within ±10%, ±5%, ±1% or ±0.5% of a rated value or range.Therefore, it is generally considered by a person skilled in the artthat the term “about” or “approximately” means that an average value iswithin an acceptable standard error. Apart from operation/workingembodiments, or unless otherwise specified by other means, numericalranges, quantities, values and percentages (for example, materialquantities, durations, temperatures, operating conditions, ratios ofquantity and the like) disclosed herein should be understood as modifiedby the term “about” or “approximately” in all circumstances. Thus,unless otherwise specified, the numerical parameters given in thepresent invention and the appended claims may be variable approximatevalues. At least, the numerical parameters should be understoodaccording to the reported numerals of effective digits by commonrounding means. A range may be represented in the disclosure as from oneend point to another end point or between the two end points. Unlessotherwise specified, all ranges disclosed herein are inclusive of theend points. The expression “substantially coplanar” may refer to twosurfaces within several microns (μm) along the same plane (for example,within 10 μm, 5 μm, 1 μm or 0.5 μm along the same plane). When numericalvalues or features are “substantially” the same, the term may mean thatthe values are within ±10%, ±5%, ±1% or ±0.5% of an average value of thevalues.

An accessory for a handheld device is disclosed by the present inventionto improve convenience for operating a handheld device for a user. Theaccessory may be attached to the handheld device or a case amounting tothe handheld device, and includes a first base, a second base and twoflexible elements. The two flexible elements are respectively disposedon two ends of the first base, and each of the flexible elements has atrack. The second base has a fastener for engaging with the tracks ofthe two flexible elements. When a distance between the first base andthe second base changes, the fastener slides along the tracks and theflexible elements are flexed.

More specifically, when the user increases the distance between thefirst base and the second base, the fastener slides relative to thetracks and a first deformation occurs to each of the flexible elements.When the fastener slides to an end point of the track, the respectivefirst deformation of the flexible elements can maintain the distancebetween the first base and the second base. Accordingly, the user mayplace the handheld device at a specific orientation by using theaccessory based on the first deformation of the flexible elements (asshown in FIG. 11 , in which A1 is the accessory and A2 is the handhelddevice). In contrast, when the user reduces the distance between thefirst base and the second base, the fastener slides relative to thetracks and a second deformation occurs to each of the flexible elements.The second deformation restores the flexible elements to the originalstate of the flexible elements from the first deformation.

Please refer to FIGS. 1A and 1B. FIG. 1A shows a three-dimensionaldiagram of an accessory 1 according to some embodiments of the presentinvention. FIG. 1B shows another three-dimensional diagram of theaccessory 1 according to some embodiments of the present invention. Theaccessory 1 includes a first base 11, a second base 13, a first flexibleelement 15 and a second flexible element 17. The first flexible element15 and the second flexible element 17 are respectively disposed at thefirst base 11, and are located between the first base 11 and the secondbase 13. The first flexible element 15 has a first track 151. The secondflexible element 17 has a second track 171.

FIG. 1C shows a cross-sectional diagram of the accessory 1 taken along asection line A-A′ in FIG. 1B. Specifically, the second base 13 has afastener 131 for engaging with the first track 151 and the second track171, so that the first flexible element 15 and the second flexibleelement 17 may slide relative to the fastener 131. The first flexibleelement 15 is flexed based on sliding of the fastener 131 along thefirst track 151, and the second flexible element 17 is flexed based onsliding of the fastener 131 along the second track 171.

Further, in these embodiments, the fastener 131 has a column-like trunkand a head. One end of the trunk is connected to a body of the secondbase 13, another end of the trunk is connected to the head, and thetrunk is located in the first track 151 and the second track 171. Anouter diameter of the head is greater than channel widths of the firsttrack 151 and the second track 171, so that the fastener 131 does noteasily disengage from the first track 151 or the second track 171.

FIG. 1D shows an operation schematic diagram of the accessory 1according to some embodiments of the present invention. Specifically,when a distance between the first base 11 and the second base 13increases (as shown by the arrows), the first base 11 pulls one end ofthe first flexible element 15 into motion. Since the fastener 131 of thesecond base 13 is engaged with the first track 151 of the first flexibleelement 15, the fastener 131 slides along the first track 151 when oneend of the first flexible element 15 moves with the first base 11. Asthe fastener 131 slides to one end of the first track 151, as shown inFIG. 1B, a deformation occurs to the first flexible element 15, and suchdeformation can maintain a distance between one end of the first base 11and one end of the second base 13.

FIG. 1E shows another operation schematic diagram of the accessory 1according to some embodiments of the present invention. In contrast tothe above-described operation, when the distance between the first base11 and the second base 13 decreases (as shown by the arrows), the firstbase 11 pushes one end of the first flexible element 15 into motion.Since the fastener 131 of the second base 13 is engaged with the firsttrack 151 of the first flexible element 15, the fastener 131 slidesalong the first track 151 when one end of the first flexible element 15moves with the first base 11. When the fastener 131 slides to anotherend of the first track 151, a deformation occurs to the first flexibleelement 15 for restoring the first flexible element 15 to its originalstate.

Similarly, when the distance between the first base 11 and the secondbase 13 increases, the first base 11 pulls one end of the secondflexible element 17 into motion. Since the fastener 131 of the secondbase 13 is engaged with the second track 171 of the second flexibleelement 17, the fastener 131 slides along the second track 171 when oneend of the second flexible element 17 moves with the first base 11. Asthe fastener 131 slides to one end of the second track 171, as shown inFIG. 1B, a deformation occurs to the second flexible element 17, andsuch deformation can maintain a distance between another end of thefirst base 11 and another end of the second base 13.

In contrast, when the distance between the first base 11 and the secondbase 13 decreases, the first base 11 pushes one end of the secondflexible element 17 into motion. Since the fastener 131 of the secondbase 13 is engaged with the second track 171 of the second flexibleelement 17, the fastener 131 slides along the second track 171 when oneend of the second flexible element 17 moves with the first base 11.Accordingly, a deformation occurs to the second flexible element 17 forrestoring the second flexible element 17 to its original state.

Referring to FIG. 1F, in another embodiment, a fastener 131′ may be along structure, and has a trunk and a head. The trunk and the head areboth long structures, and the trunk is located in the first track 151and the second track 171. An outer diameter of the head is greater thanchannel widths of the first track 151 and the second track 171, so thatthe fastener 131′ does not easily disengage from the first track 151 orthe second track 171. Moreover, because the fastener 131′ and thehollow-shaped tracks are both long structures, the fastener 131′ canretain the first flexible element 15 and the second flexible element 17from swaying or deviating relative to the fastener 131′.

Please refer to FIGS. 2A and 2B. FIG. 2A shows a three-dimensionaldiagram of an accessory 2 according to some embodiments of the presentinvention. FIG. 2B shows another three-dimensional diagram of theaccessory 2 according to some embodiments of the present invention. Theaccessory 2 includes a first base 21, a second base 23, a first flexibleelement 25 and a second flexible element 27.

Specifically, the first base 21 and the second base 23 include longstructures. In these embodiments, each of two lengthwise sides of thelong structure of the second base 23 has an indentation 237. In otherembodiments, each of two lengthwise sides of the long structure of thefirst base 21 has an indentation, or each of the two lengthwise sides ofthe long structures of the first base 21 and the second base 23 has anindentation, or one lengthwise side of either the long structure of thefirst base 21 or the long structure of the second base 23 has anindentation, wherein the design of the indentations facilitates aclamping operation of the user. The first flexible element 25 and thesecond flexible element 27 include sheet-like structures, and aredisposed on the first base 21 and located between the first base 21 andthe second base 23. The first flexible element 25 has a first track 251,and the second flexible element 27 has a second track 271.

One end of the first flexible element 25 is disposed on one end 210 ofthe first base 21, and one end of the second flexible element 27 isdisposed on another end 212 of the first base 21. The second base 23 hasan accommodating space 230, and the first flexible element 25 and thesecond flexible element 27 are accommodated in the accommodating space230 when the first base 21 and the second base 23 are adjoining.

Please refer also to FIG. 2C, which shows a cross-sectional diagram ofthe accessory 2 taken along a section line B-B′ in FIG. 2B.Specifically, the second base 23 includes a fastener 231, a body 233,two sidewalls 234 and a baffle 235. The two sidewalls 234 are disposedat an interval at a top portion of the body 233 and together with thebody 233 form the accommodating space 230 therebetween. The baffle 235bridges the two sidewalls 234, and the baffle 235 and the body 233together define a space 232. The fastener 231 is disposed on the baffle235 and in the space 232. The fastener 231 is for engaging with thefirst track 251 and the second track 271.

In these embodiments, the first track 251 includes a hollow portionformed in the first flexible element 25, the second track 271 includes ahollow portion formed at the second flexible element 27, and the firstflexible element 25 and the second flexible element 27 mutually overlapand pass through the space 232. The fastener 231 passes through thehollow portion of the first flexible element 25 and the hollow portionof the second flexible element 27 so as to engage with the first track251 and the second track 271. The first flexible element 25 is flexedbased on sliding of the fastener 231 along the first track 251, and thesecond flexible element 27 is flexed based on sliding of the fastener231 along the second track 271.

FIG. 2D shows an operation schematic diagram of the accessory 2according to some embodiments of the present invention. Specifically,when a distance between the first base 21 and the second base 23increases (as shown by the arrows), the first base 21 pulls one end ofthe first flexible element 25 into motion. Since the fastener 231 of thesecond base 23 is engaged with the first track 251 of the first flexibleelement 25, the fastener 231 slides along the first track 251 as the endof the first flexible element 25 moves with the first base 21. As thefastener 231 slides to one end of the first track 251, as shown in FIG.2B, a deformation occurs to the first flexible element 25, and suchdeformation can maintain the distance between one end of the first base21 and one end of the second base 23.

FIG. 2E shows another operation schematic diagram of the accessory 2according to some embodiments of the present invention. In contrast tothe above-described operation, when the distance between the first base21 and the second base 23 decreases (as shown by the arrows), the firstbase 21 pushes one end of the first flexible element 25 into motion.Since the fastener 231 of the second base 23 is engaged with the firsttrack 251 of the first flexible element 25, the fastener 231 slidesalong the first track 251 as one end of the first flexible element 25moves with the first base 21. As the fastener 231 slides to another endof the first track 251, a deformation occurs to the first flexibleelement 25 for restoring the first flexible element 25 to its originalstate.

Similarly, when the distance between the first base 21 and the secondbase 23 increases, the first base 21 pulls one end of the secondflexible element 27 into motion. Since the fastener 231 of the secondbase 23 is engaged with the second track 271 of the second flexibleelement 27, the fastener 231 slides along the second track 271 as oneend of the second flexible element 27 moves with the first base 21. Asthe fastener 231 slides to one end of the second track 271, as shown inFIG. 2B, deformation occurs to the second flexible element 27, and suchdeformation can maintain a distance between the other end 212 of thefirst base 21 and another end of the second base 23.

In contrast, when the distance between the first base 21 and the secondbase 23 decreases, the first base 21 pushes one end of the secondflexible element 27 into motion. Since the fastener 231 of the secondbase 23 is engaged with the second track 271 of the second flexibleelement 27, the fastener 231 slides along the second track 271 as oneend of the second flexible element 27 moves with the first base 21.Accordingly, a deformation occurs to the second flexible element 27 forrestoring the second flexible element 27 to its original state.

Please refer to FIGS. 3A and 3B. FIG. 3A shows a three-dimensionaldiagram of an accessory 3 according to some embodiments of the presentinvention. FIG. 3B shows another three-dimensional diagram of theaccessory 3 according to some embodiments of the present invention. Theaccessory 3 includes a first base 31, a second base 33, a first flexibleelement 35 and a second flexible element 37.

Specifically, the first base 31 and the second base 33 include longstructures. In this embodiment, each of two lengthwise sides of the longstructure of the second base 33 has an indentation 337. In otherembodiments, each of two lengthwise sides of the long structure of thefirst base 31 has an indentation, or each of the two lengthwise sides ofthe long structures of the first base 31 and the second base 33 has anindentation, or one lengthwise side of either the long structure of thefirst base 31 or the long structure of the second base 33 has anindentation, wherein the design of the indentations facilitates aclamping operation of the user. The first flexible element 35 and thesecond flexible element 37 include sheet-like structures, and aredisposed on the first base 31 and located between the first base 31 andthe second base 33. The first flexible element 35 has a first track 351,and the second flexible element 37 has a second track 371.

One end of the first flexible element 35 is disposed on one end 310 ofthe first base 31, and one end of the second flexible element 37 isdisposed on another end 312 of the first base 31. The second base 33 hasan accommodating space 330, and the first flexible element 35 and thesecond flexible element 37 are accommodated in the accommodating space330 when the first base 31 and the second base 33 are adjoining.

Please also refer to FIG. 3C, which shows a cross-sectional diagram ofthe accessory 3 taken along a section line C-C′ in FIG. 3B.Specifically, the second base 33 has a fastener 331, a body 333, twosidewalls 334 and a baffle 335. The two sidewalls 334 are disposed at aninterval at a top portion of the body 333 and together with the body 333form the accommodating space 330. The baffle 335 bridges the twosidewalls 334, and the baffle 335 and the body 333 together define aspace 332. The fastener 331 is disposed on the baffle 335 in the space332, and is for engaging with the first track 351 and the second track371.

In these embodiments, the first track 351 includes a hollow portionformed in the first flexible element 35, the second track 371 includes agroove formed in the second flexible element 37, and the first flexibleelement 35 and the second flexible element 37 mutually overlap and passthrough the space 332. The fastener 331 first passes through the hollowportion of the first flexible element 35 and is then inserted into thegroove of the second flexible element 37, so as to engage with the firsttrack 351 and the second track 371. The first flexible element 35 isflexed based on sliding of the fastener 331 along the first track 351,and the second flexible element 37 is flexed based on sliding of thefastener 331 along the second track 371.

FIG. 3D shows an operation schematic diagram of the accessory 3according to some embodiments of the present invention. Specifically,when a distance between the first base 31 and the second base 33increases (as shown by the arrows), the first base 31 pulls one end ofthe first flexible element 35 into motion. Since the fastener 331 of thesecond base 33 is engaged with the first track 351 of the first flexibleelement 35, the fastener 331 slides along the first track 351 when oneend of the first flexible element 35 moves with the first base 31. Asthe fastener 331 slides to one end of the first track 351, as shown inFIG. 3B, a deformation occurs to the first flexible element 35, and suchdeformation can maintain a distance between one end of the first base 31and one end of the second base 33.

Please also refer to FIG. 3E, which shows another operation schematicdiagram of the accessory 3 according to some embodiments of the presentinvention. In contrast to the above-described operation, when thedistance between the first base 31 and the second base 33 decreases (asshown by the arrows), the first base 31 pushes one end of the firstflexible element 35 into motion. Since the fastener 331 of the secondbase 33 is engaged with the first track 351 of the first flexibleelement 35, the fastener 331 slides along the first track 351 as one endof the first flexible element 35 moves with the first base 31. As thefastener 331 slides to another end of the first track 351, a deformationoccurs to the first flexible element 35 for restoring the first flexibleelement 35 to its original state.

Similarly, when the distance between the first base 31 and the secondbase 33 increases, the first base 31 pulls one end of the secondflexible element 37 into motion. Since the fastener 331 of the secondbase 33 is engaged with the second track 371 of the second flexibleelement 37, the fastener 331 slides along the second track 371 as oneend of the second flexible element 37 moves with the first base 31. Asthe fastener 331 slides to one end of the second track 371, as shown inFIG. 3B, a deformation occurs to the second flexible element 37, andsuch deformation can maintain a distance between another end of thefirst base 31 and another end of the second base 33.

In contrast, when the distance between the first base 31 and the secondbase 33 decreases, the first base 31 pushes one end of the secondflexible element 37 into motion. Since the fastener 331 of the secondbase 33 is engaged with the second track 371 of the second flexibleelement 37, the fastener 331 slides along the second track 371 as oneend of the second flexible element 37 moves with the first base 31.Accordingly, a deformation occurs to the second flexible element 37 forrestoring the second flexible element 37 to its original state.

In some embodiments, the flexible elements and the fastener may bepositioned using a positioning element therebetween, as illustrated inFIGS. 3F and 3G. FIG. 3F shows a top view of a first flexible element35′ of the present invention. FIG. 3G shows a schematic diagram of apositioning between a first track 351′ of the first flexible element 35′and a fastener 331′ of the present invention. Specifically, the firsttrack 351′ is a hollow portion, and is provided with a first positioningmeans 351A′ for positioning the fastener 331′. In some embodiments, thefirst positioning means 351A′ includes a dilated slot formed at one endof the first track 351′, and the dilated slot is for receiving aprotrusion block shape of the fastener 331′.

Please refer to FIGS. 3H and 31 . FIG. 3H shows a schematic diagram of asecond flexible element 37′ of the present invention. FIG. 31 shows aschematic diagram of a positioning between a second track 371′ of thesecond flexible element 37′ and the fastener 331′ of the presentinvention. Specifically, the second track 371′ is a groove, and isprovided with a second positioning means 371A′ for positioning thefastener 331′. In some embodiments, the second positioning means 371A′includes a dilated slot formed at one end of the second track 371′, andthe dilated slot is for receiving the protrusion block shape of thefastener 331′.

Please refer to FIGS. 4A to 4C. FIG. 4A shows a three-dimensionaldiagram of an accessory 4 according to some embodiments of the presentinvention. FIG. 4B shows another three-dimensional diagram of theaccessory 4 according to some embodiments of the present invention. FIG.4C shows a three-dimensional diagram of the accessory 4 from anotherangle according to some embodiments of the present invention. Theaccessory 4 includes a first base 41, a second base 43, a first flexibleelement 45 and a second flexible element 47.

Specifically, the first base 41 and the second base 43 include longstructures, and each of two lengthwise sides of the long structure ofthe first base 41 or the second base 43 has an indentation to facilitatea clamping operation of the user. In this embodiment, each of the twolengthwise sides of the long structure of the second base 43 has anindentation 437. The first flexible element 45 and the second flexibleelement 47 include sheet-like structures, and are disposed on the firstbase 41 and located between the first base 41 and the second base 43.The first flexible element 45 has a first track 451, and the secondflexible element 47 has a second track 471.

One end of the first flexible element 45 is disposed on one end 410 ofthe first base 41, and one end of the second flexible element 47 isdisposed on another end 412 of the first base 41. The first base 41 hasan accommodating space 414, the second base 43 has an accommodatingspace 430, and the first flexible element 45 and the second flexibleelement 47 are accommodated in the accommodating spaces 414 and 430 whenthe first base 41 and the second base 43 are adjoining.

In some embodiments, the accommodating space 414 includes a first recessformed in the first base 41, and the accommodating space 430 includes asecond recess formed in the second base 43. The second recess containsan annular projection 439 at a periphery of the second recess, theannular projection 439 protruding toward the first base 41. The firstrecess is shaped corresponding to the annular shape of the annularprojection 439, and the first recess can accordingly accommodate theannular projection 439 when the first base 41 and the second base 43 areadjoining.

Please also refer to FIG. 4D, which shows a cross-sectional diagram ofthe accessory 4 taken along a section line D-D′ in FIG. 4B.Specifically, the second base 43 has a fastener 431, a body 433 and abaffle 435. The baffle 435 bridges two sides of the second recess (thatis, the accommodating space 430) of the second base 43, and the body 433and the baffle 435 together define a space 432. The fastener 431 isdisposed on the baffle 435 in the space 432, and is for engaging withthe first track 451 and the second track 471. In these embodiments, thebody 433 is provided, at a position corresponding to the baffle 435,with a hollow portion 434 for exposing the fastener 431, to facilitatethe user to operate the first track 451 and the second track 471 fortheir respective engagement with the fastener 431.

In these embodiments, the first track 451 includes a hollow portionformed in the first flexible element 45, the second track 471 includes ahollow portion formed in the second flexible element 47, and the firstflexible element 45 and the second flexible element 47 mutually overlapand pass through the space 432. The fastener 431 passes through thehollow portion of the first flexible element 45 and the hollow portionof the second flexible element 47 so as to engage with the first track451 and the second track 471. The first flexible element 45 is flexedbased on sliding of the fastener 431 along the first track 451, and thesecond flexible element 47 is flexed based on sliding of the fastener431 along the second track 471.

Please also refer to FIG. 4E, which shows an operation schematic diagramof the accessory 4 according to some embodiments of the presentinvention. Specifically, when a distance between the first base 41 andthe second base 43 increases (as shown by the arrows), the first base 41pulls one end of the first flexible element 45 into motion. Since thefastener 431 of the second base 43 is engaged with the first track 451of the first flexible element 45, the fastener 431 slides along thefirst track 451 when one end of the first flexible element 45 moves withthe first base 41. As the fastener 431 slides to one end of the firsttrack 451, as shown in FIG. 4B, a deformation occurs to the firstflexible element 45, and such deformation can maintain a distancebetween one end of the first base 41 and one end of the second base 43.

Please also refer to FIG. 4F, which shows another operation schematicdiagram of the accessory 4 according to some embodiments of the presentinvention. In contrast to the above-described operation, when thedistance between the first base 41 and the second base 43 decreases (asshown by the arrows), the first base 41 pushes one end of the firstflexible element 45 into motion. Since the fastener 431 of the secondbase 43 is engaged with the first track 451 of the first flexibleelement 45, the fastener 431 slides along the first track 451 when oneend of the first flexible element 45 moves with the first base 41. Asthe fastener 431 slides to another end of the first track 451, adeformation occurs to the first flexible element 45 for restoring thefirst flexible element 45 to its original state.

Similarly, when the distance between the first base 41 and the secondbase 43 increases, the first base 41 pulls one end of the secondflexible element 47 into motion. Since the fastener 431 of the secondbase 43 is engaged with the second track 471 of the second flexibleelement 47, the fastener 431 slides along the second track 471 when oneend of the second flexible element 47 moves with the first base 41. Asthe fastener 431 slides to one end of the second track 471, as shown inFIG. 4B, a deformation occurs to the second flexible element 47, andsuch deformation can maintain a distance between the other end 412 ofthe first base 41 and another end of the second base 43.

In contrast, when the distance between the first base 41 and the secondbase 43 decreases, the first base 41 pushes one end of the secondflexible element 47 into motion. Since the fastener 431 of the secondbase 43 is engaged with the second track 471 of the second flexibleelement 47, the fastener 431 slides along the second track 471 when oneend of the second flexible element 47 moves with the first base 41.Accordingly, a deformation occurs to the second flexible element 47 forrestoring the second flexible element 47 to its original state.

Please refer to FIGS. 4G and 4H. FIG. 4G shows a three-dimensionaldiagram of the second base 43 according to some embodiments of thepresent invention. FIG. 4H shows a cross-sectional diagram of the secondbase 43 taken along a section line E-E′ in FIG. 4G according to someembodiments of the present invention. In some embodiments, theaccommodating space 430 is formed at a recess of the second base 43, anda depth H1 of one end of the recess is different from a depth H2 ofanother end of the recess, so as to better enable the first flexibleelement 45 and the second flexible element 47 to slide in theaccommodating space 430.

In some embodiments, the second base 43 is disposed on a back surface ofthe handheld device, and the first base 41 is provided with a recess forplacing an object depending on user requirements. Please refer to FIG.41 , which shows a three-dimensional diagram of the accessory 4according to some embodiments of the present invention. In someembodiments, the first base 41 is provided with a recess 416 foraccommodating an object (for example, a sensor chip sch as a credit cardchip or an EasyCard chip), to allow a user to perform a chip sensingoperation using the first base 41.

Please refer to FIGS. 5A and 5B. FIG. 5A shows a three-dimensionaldiagram of an accessory 5 according to some embodiments of the presentinvention. FIG. 5B shows another three-dimensional diagram of theaccessory 5 according to some embodiments of the present invention. Theaccessory 5 includes a first base 51, a second base 53, a first flexibleelement 55 and a second flexible element 57.

Specifically, the first flexible element 55 and the second flexibleelement 57 are respectively disposed at the first base 51, and arelocated between the first base 51 and the second base 53. One end of thefirst flexible element 55 is disposed on one end 510 of the first base51, and one end of the second flexible element 57 is disposed on anotherend 512 of the first base 51. The second base 53 has an accommodatingspace 530, and the first flexible element 55 and the second flexibleelement 57 are accommodated in the accommodating space 530 when thefirst base 51 and the second base 53 are adjoining.

Please also refer to FIG. 5C, which shows a cross-sectional diagram ofthe accessory 5 taken along a section line F-F′ in FIG. 5B.Specifically, the second base 53 has a body 533, two sidewalls 534 and abaffle 535. The two sidewalls 534 are disposed at an interval at a topportion of the body 533 and together with the body 533 form theaccommodating space 530. The baffle 535 bridges the two sidewalls 534,and the baffle 535 and the body 533 together define a space 532. Thefirst flexible element 55 and the second flexible element 57 mutuallyoverlap and pass through the space 532. The first flexible element 55and the second flexible element 57 are flexed based on a change of adistance between the first base 51 and the second base 53.

Please refer to FIG. 5D, which shows an operation schematic diagram ofthe accessory 5 according to some embodiments of the present invention.Specifically, when the distance between the first base 51 and the secondbase 53 increases (as shown by the arrows), the first base 51 pulls oneend of the first flexible element 55 into motion. Since the firstflexible element 55 passes through the space 532 defined by the baffle535 and the body 533, as one end of the first flexible element 55 moveswith the first base 51, a deformation occurs to the first flexibleelement 55 as shown in FIG. 5B, and such deformation can maintain adistance between one end of the first base 51 and one end of the secondbase 53.

Please also refer to FIG. 5E, which shows another operation schematicdiagram of the accessory 5 according to some embodiments of the presentinvention. In contrast to the above-described operation, when thedistance between the first base 51 and the second base 53 decreases (asshown by the arrows), the first base 51 pushes one end of the firstflexible element 55 into motion. Since the first flexible element 55passes through the space 532 defined by the baffle 535 and the body 533,a deformation occurs to the first flexible element 55 for restoring thefirst flexible element 55 to its original state when one end of thefirst flexible element 55 moves with the first base 51.

Similarly, when the distance between the first base 51 and the secondbase 53 increases, the first base 51 pulls one end of the secondflexible element 57 into motion. Since the second flexible element 57passes through the space 532 defined by the baffle 535 and the body 533,when one end of the second flexible element 57 moves with the first base51, a deformation occurs to the second flexible element 57 as shown inFIG. 5B, and such deformation can maintain the distance between one endof the first base 51 and one end of the second base 53.

In contrast, when the distance between the first base 51 and the secondbase 53 decreases, the first base 51 pushes one end of the secondflexible element 57 into motion. Since the second flexible element 57passes through the space 532 defined by the baffle 535 and the body 533,a deformation occurs to the second flexible element 57 for restoring thesecond flexible element 57 to its original state when one end of thesecond flexible element 57 moves with the first base 51.

Please refer to FIGS. 6A and 6B. FIG. 6A shows a three-dimensionaldiagram of an accessory 6 according to some embodiments of the presentinvention. FIG. 6B shows another three-dimensional diagram of theaccessory 6 according to some embodiments of the present invention. Theaccessory 6 includes a first base 61, a second base 63, a first flexibleelement 65 and a second flexible element 67. Please also refer to FIG.6C, which shows a schematic diagram of the accessory 6 with the secondbase 63 removed according to some embodiments of the present invention.

Specifically, the first flexible element 65 and the second flexibleelement 67 are respectively disposed at the first base 61, and arelocated between the first base 61 and the second base 63. One end of thefirst flexible element 65 is disposed on one end 610 of the first base61, and one end of the second flexible element 67 is disposed on anotherend 612 of the first base 61. The second base 63 has an accommodatingspace 630, and the first flexible element 65 and the second flexibleelement 67 are accommodated in the accommodating space 630 when thefirst base 61 and the second base 63 are adjoining. The first flexibleelement 65 has a first track 651. The second flexible element 67 has afastener 671.

Please also refer to FIG. 6D, which shows a cross-sectional diagram ofthe accessory 6 taken along a section line G-G′ in FIG. 6B.Specifically, the second base 63 has a body 633, two sidewalls 634 and abaffle 635. The two sidewalls 634 are disposed at an interval at a topportion of the body 633 and together with the body 633 form theaccommodating space 630. The baffle 635 bridges the two sidewalls 634,and the baffle 635 and the body 633 together define a space 632. Thefirst flexible element 65 and the second flexible element 67 mutuallyoverlap and pass through the space 632. The fastener 671 of the secondflexible element 67 is for engaging with the first track 651 of thefirst flexible element 65, so that the first flexible element 65 and thesecond flexible element 67 may slide relative to each other. The firstflexible element 65 is flexed based on sliding of the fastener 671 alongthe first track 651, and the second flexible element 67 is flexed basedon sliding of the fastener 671 along the first track 651.

Please also refer to FIG. 6E, which shows an operation schematic diagramof the accessory 6 according to some embodiments of the presentinvention. Specifically, when a distance between the first base 61 andthe second base 63 increases (as shown by the arrows), the first base 61pulls one end of the first flexible element 65 and one end of the secondflexible element 67 into motion. Since the fastener 671 of the secondflexible element 67 is engaged with the first track 651 of the firstflexible element 65, the fastener 671 slides along the first track 651when one end of the first flexible element 65 and one end of the secondflexible element 67 move with the first base 61. As the fastener 671slides to one end of the first track 651, as shown in FIG. 6B, adeformation occurs to the first flexible element 65 and the secondflexible element 67, and such deformation can maintain a distancebetween the first base 61 and the second base 63.

Please also refer to FIG. 6F, which shows another operation schematicdiagram of the accessory 6 according to some embodiments of the presentinvention. Specifically, when the distance between the first base 61 andthe second base 63 decreases (as shown by the arrows), the first base 61pushes one end of the first flexible element 65 and one end of thesecond flexible element 67 into motion. Since the fastener 671 of thesecond flexible element 67 is engaged with the first track 651 of thefirst flexible element 65, the fastener 671 slides along the first track651 as one end of the first flexible element 65 and one end of thesecond flexible element 67 move with the first base 61. As the fastener671 slides to another end of the first track 651, a deformation occursto the first flexible element 65 and the second flexible element 67 forrestoring the first flexible element 65 and the second flexible element67 to their original states.

Please refer to FIGS. 7A and 7B. FIG. 7A shows a three-dimensionaldiagram of an accessory 7 according to some embodiments of the presentinvention. FIG. 7B shows another three-dimensional diagram of theaccessory 7 according to some embodiments of the present invention. Theaccessory 7 includes a first base 71, a second base 73, a first flexibleelement 75 and a second flexible element 77.

Specifically, the first flexible element 75 and the second flexibleelement 77 are respectively disposed at the first base 71, and arelocated between the first base 71 and the second base 73. One end of thefirst flexible element 75 is disposed on one end 710 of the first base71, and one end of the second flexible element 77 is disposed on anotherend 712 of the first base 71. The second base 73 has an accommodatingspace 730, and the first flexible element 75 and the second flexibleelement 77 are accommodated in the accommodating space 730 when thefirst base 71 and the second base 73 are adjoining.

Please also refer to FIG. 7C, which shows a cross-sectional diagram ofthe accessory 7 taken along a section line H-H′ in FIG. 7B.Specifically, the second base 73 has a body 733, two sidewalls 734, abaffle 735A and another baffle 735B. The two sidewalls 734 are disposedat an interval on a top portion of the body 733, and together with thebody 733 form the accommodating space 730. The baffle 735A and thebaffle 735B respectively bridge the two sidewalls 734. The baffle 735Bis located between the baffle 735A and the body 733. The baffle 735A andthe baffle 735B define a space 732A therebetween, and the body 733 andthe baffle 735B define a space 732B therebetween. The first flexibleelement 75 passes through the space 732A, and the second flexibleelement 77 passes through the space 732B. The first flexible element 75and the second flexible element 77 are flexed based on a change of adistance between the first base 71 and the second base 73.

Please refer to FIG. 7D, which shows an operation schematic diagram ofthe accessory 7 according to some embodiments of the present invention.Specifically, when the distance between the first base 71 and the secondbase 73 increases (as shown by the arrows), the first base 71 pulls oneend of the first flexible element 75 into motion. Since the firstflexible element 75 passes through the space 732A defined by the baffle735A and the baffle 735B, when one end of the first flexible element 75moves with the first base 71, a deformation occurs to the first flexibleelement 75 as shown in FIG. 7B, and such deformation can maintain adistance between one end of the first base 71 and one end of the secondbase 73.

Please also refer to FIG. 7E, which shows another operation schematicdiagram of the accessory 7 according to some embodiments of the presentinvention. In contrast to the above-described operation, when thedistance between the first base 71 and the second base 73 decreases (asshown by the arrows), the first base 71 pushes one end of the firstflexible element 75 into motion. Since the first flexible element 75passes through the space 732A defined by the baffle 735A and the baffle735B, a deformation occurs to the first flexible element 75 forrestoring the first flexible element 75 to its original state when oneend of the first flexible element 75 moves with the first base 71.

Similarly, when the distance between the first base 71 and the secondbase 73 increases, the first base 71 pulls one end of the secondflexible element 77 into motion. Since the second flexible element 77passes through the space 732B defined by the baffle 735B and the body733, as one end of the second flexible element 77 moves with the firstbase 71, a deformation occurs to the second flexible element 77 as shownin FIG. 7B, and such deformation can maintain a distance between one endof the first base 71 and one end of the second base 73.

In contrast, when the distance between the first base 71 and the secondbase 73 decreases, the first base 71 pushes one end of the secondflexible element 77 into motion. Since the second flexible element 77passes through the space 732B defined by the baffle 735B and the body733, a deformation occurs to the second flexible element 77 forrestoring the second flexible element 77 to its original state when oneend of the second flexible element 77 moves with the first base 71.

In some embodiments, as shown in FIG. 7F, one end of the first flexibleelement 75 that passes through the space 732A has a stopping structure751. When the distance between the first base 71 and the second base 73increases, the stopping structure 751 presses against the baffle 735A toprevent the first flexible element 75 from departing the space 732A.Similarly, one end of the second flexible element 77 that passes throughthe space 732B has a stopping structure (not shown) for pressing againstthe baffle 735B to prevent the second flexible element 77 from departingthe space 732B.

Please refer to FIGS. 8A to 8C. FIG. 8A shows a three-dimensionaldiagram of an accessory 8 according to some embodiments of the presentinvention. FIG. 8B shows another three-dimensional diagram of theaccessory 8 according to some embodiments of the present invention. FIG.8C is a cross-sectional diagram of the accessory 8 taken along a sectionline I-I′ in FIG. 8B. The accessory 8 includes a first base 81, a secondbase 83, a first flexible element 85 and a second flexible element 87.

Specifically, the first flexible element 85 and the second flexibleelement 87 are respectively disposed at the first base 81, and arelocated between the first base 81 and the second base 83. One end of thefirst flexible element 85 is disposed on one end 810 of the first base81, and one end of the second flexible element 87 is disposed on anotherend 812 of the first base 81. The second base 83 has an accommodatingspace 830, and the first flexible element 85 and the second flexibleelement 87 are accommodated in the accommodating space 830 when thefirst base 81 and the second base 83 are adjoining. The second base 83has a body 833, two sidewalls 834 and a baffle 835. The two sidewalls834 are disposed at an interval at a top portion of the body 833 andtogether with the body 833 form the accommodating space 830. The baffle835 bridges the two sidewalls 834, and the baffle 835 and the body 833together define a space 832.

The first flexible element 85 and the second flexible element 87mutually overlap and pass through the space 832. In the space 832, thefirst flexible element 85 is located between the baffle 835 and thesecond flexible element 87, and the second flexible element 87 islocated between the first flexible element 85 and the body 833. Relativeto one end of the first flexible element 85 disposed at the first base81, another end of the first flexible element 85 has a first fastener85P protruding toward the second flexible element 87. Relative to oneend of the second flexible element 87 disposed at the first base 81,another end of the second flexible element 87 has a second fastener 87Pprotruding toward the first flexible element 85.

Please refer to FIG. 8D, which shows an operation schematic diagram ofthe accessory 8 according to some embodiments of the present invention.Specifically, when a distance between the first base 81 and the secondbase 83 increases (as shown by the arrows), the first base 81 pulls oneend of the first flexible element 85 into motion. Since the firstflexible element 85 passes through the space 832 defined by the baffle835 and the body 833, as one end of the first flexible element 85 moveswith the first base 81, a deformation occurs to the first flexibleelement 85 as shown in FIG. 8B, and such deformation can maintain adistance between one end of the first base 81 and one end of the secondbase 83.

Please also refer to FIG. 8E, which shows another operation schematicdiagram of the accessory 8 according to some embodiments of the presentinvention. In contrast to the above-described operation, when thedistance between the first base 81 and the second base 83 decreases (asshown by the arrows), the first base 81 pushes one end of the firstflexible element 85 into motion. Since the first flexible element 85passes through the space 832 defined by the baffle 835 and the body 833,a deformation occurs to the first flexible element 85 for restoring thefirst flexible element 85 to its original state when one end of thefirst flexible element 85 moves with the first base 81.

Similarly, when the distance between the first base 81 and the secondbase 83 increases, the first base 81 pulls one end of the secondflexible element 87 into motion. Since the second flexible element 87passes through the space 832 defined by the baffle 835 and the body 833,as one end of the second flexible element 87 moves with the first base81, a deformation occurs to the second flexible element 87 as shown inFIG. 8B, and such deformation can maintain the distance between one endof the first base 81 and one end of the second base 83.

In contrast, when the distance between the first base 81 and the secondbase 83 decreases, the first base 81 pushes one end of the secondflexible element 87 into motion. Since the second flexible element 87passes through the space 832 defined by the baffle 835 and the body 833,a deformation occurs to the second flexible element 87 for restoring thesecond flexible element 87 to its original state when one end of thesecond flexible element 87 moves with the first base 81.

In these embodiments, when the distance between the first base 81 andthe second base 83 increases, the first fastener 85P of the firstflexible element 85 and the second fastener 87P of the second flexibleelement 87 approach each other during sliding of the first flexiblemember 85 and the second flexible element 87, and the first fastener 85Pand the second fastener 87P can abut in the space 832. As such, as shownin FIG. 8C, the first fastener 85P and the second fastener 87P can bemutually fitted when abutted in the space 832, so as to prevent thefirst flexible element 85 and the second flexible element 87 fromdeparting the space 832.

Please refer to FIGS. 9A and 9B. FIG. 9A shows a three-dimensionaldiagram of an accessory 9 according to some embodiments of the presentinvention. FIG. 9B shows another three-dimensional diagram of theaccessory 9 according to some embodiments of the present invention. Theaccessory 9 includes a first base 91, a second base 93, a first flexibleelement 95 and a second flexible element 97.

Specifically, the first flexible element 95 and the second flexibleelement 97 are respectively disposed at the first base 91, and arelocated between the first base 91 and the second base 93. One end of thefirst flexible element 95 is disposed on one end 910 of the first base91, and one end of the second flexible element 97 is disposed on anotherend 912 of the first base 91. The second base 93 has an accommodatingspace 930, and the first flexible element 95 and the second flexibleelement 97 are accommodated in the accommodating space 930 when thefirst base 91 and the second base 93 are adjoining.

Please refer to FIGS. 9C to 9E. FIG. 9C shows a three-dimensionaldiagram of the second base 93 according to some embodiments of thepresent invention. FIG. 9D shows a three-dimensional diagram of thesecond base 93 engaged with the second flexible element 97 according tosome embodiments of the present invention. FIG. 9E is a cross-sectionaldiagram of the accessory 9 taken along a section line J-J′ in FIG. 9B.Specifically, the second base 93 has a body 933, two sidewalls 934 and abaffle 935. The two sidewalls 934 are disposed at an interval at a topportion of the body 933 and together with the body 933 form theaccommodating space 930. The baffle 935 bridges the two sidewalls 934,and the baffle 935 and the body 933 together define a space 932. Thefirst flexible element 95 and the second flexible element 97 passthrough the space 932.

In the space 932, the first flexible element 95 is located between thebaffle 935 and the second flexible element 97, and the second flexibleelement 97 is located between the first flexible element 95 and the body933. Relative to one end of the first flexible element 95 disposed atthe first base 91, another end of the first flexible element 95 has afirst fastener 95P protruding in a direction toward the baffle 935.Relative to one end of the second flexible element 97 disposed at thefirst base 91, another end of the second flexible element 97 has asecond fastener 97P protruding in a direction toward the body 933. Thebody 933 has a track 933R for engaging with the second fastener 97P. Thetrack 933R may include a hollow portion formed in the body 933 or agroove formed in the body 933. In these embodiments, the track 933R isformed at a hollow portion of the body 933.

Please refer to FIG. 9F, which shows an operation schematic diagram ofthe accessory 9 according to some embodiments of the present invention.Specifically, when a distance between the first base 91 and the secondbase 93 increases (as shown by the arrows), the first base 91 pulls oneend of the first flexible element 95 into motion. Since the firstflexible element 95 passes through the space 932 defined by the baffle935 and the body 933, as one end of the first flexible element 95 moveswith the first base 91, a deformation occurs to the first flexibleelement 95 as shown in FIG. 9B, and such deformation can maintain adistance between one end of the first base 91 and one end of the secondbase 93.

In these embodiments, as the distance between the first base 91 and thesecond base 93 increases, the first fastener 95P of the first flexibleelement 95 approaches the baffle 935 during sliding of the firstflexible element 95 in the space 932. As such, as shown in FIG. 9B, thefirst fastener 95P protruding in the direction toward the baffle 935abuts against the baffle 935 on a side of the baffle 935, so as toprevent the first flexible element 95 from departing the space 932.

Please also refer to FIG. 9G, which shows another operation schematicdiagram of the accessory 9 according to some embodiments of the presentinvention. In contrast to the above-described operation, when thedistance between the first base 91 and the second base 93 decreases (asshown by the arrows), the first base 91 pushes one end of the firstflexible element 95 into motion. Since the first flexible element 95passes through the space 932 defined by the baffle 935 and the body 933,a deformation occurs to the first flexible element 95 for restoring thefirst flexible element 95 to its original state when one end of thefirst flexible element 95 moves with the first base 91.

Similarly, when the distance between the first base 91 and the secondbase 93 increases, the first base 91 pulls one end of the secondflexible element 97 into motion. Since the second flexible element 97passes through the space 932 defined by the baffle 935 and the body 933,as one end of the second flexible element 97 moves with the first base91, a deformation occurs to the second flexible element 97 as shown inFIG. 9B, and such deformation can maintain the distance between one endof the first base 91 and one end of the second base 93.

In these embodiments, when the distance between the first base 91 andthe second base 93 increases, the second fastener 97P of the secondflexible element 97 approaches one end of the track 933R along the track933R during sliding of the second flexible element 97 in the space 932.As such, as shown in FIG. 9D, the second fastener 97P protruding in thedirection toward the body 933 abuts against one end of the track 933R onthe track 933R, so as to prevent the second flexible element 97 fromdeparting the space 932.

In contrast, when the distance between the first base 91 and the secondbase 93 decreases, the first base 91 pushes one end of the secondflexible element 97 into motion. Since the second flexible element 97passes through the space 932 defined by the baffle 935 and the body 933,when one end of the second flexible element 97 moves with the first base91, a deformation occurs to the second flexible element 97 for restoringthe second flexible element 97 to its original state and the secondfastener 97P slides toward another end of the track 933R along the track933R.

Please refer to FIGS. 10A to 10C. FIG. 10A shows a three-dimensionaldiagram of an accessory 10 according to some embodiments of the presentinvention. FIG. 10B shows another three-dimensional diagram of theaccessory 10 according to some embodiments of the present invention.FIG. 10C shows a three-dimensional diagram of the accessory 10 fromanother angle according to some embodiments of the present invention.The accessory 10 includes a first base 101, a second base 103 and asupport assembly. The support assembly includes a support body 105A, afirst flexible element 105B and a second flexible element 105C. Thesupport assembly is disposed at the first base 101, and is locatedbetween the first base 101 and the second base 103.

Specifically, the support body 105A is disposed at the first base 51,the first flexible element 105B is connected to one end of the supportbody 105A, and the second flexible element 105C is connected to anotherend of the support body 105A. The second base 103 has an accommodatingspace 1030, and the first flexible element 105B and the second flexibleelement 105C are accommodated in the accommodating space 1030 when thefirst base 101 and the second base 103 are adjoining.

Please also refer to FIG. 10D, which shows a cross-sectional diagram ofthe accessory 10 taken along a section line K-K′ in FIG. 10B.Specifically, the second base 103 has a base body 1033, two sidewalls1034 and a baffle 1035. The two sidewalls 1034 are disposed at aninterval at a top portion of the base body 1033 and together with thebase body 1033 form the accommodating space 1030. The baffle 1035bridges the two sidewalls 1034, and the baffle 1035 and the base body1033 together define a space 1032. The first flexible element 105B andthe second flexible element 105C pass through the space 1032. The firstflexible element 105B and the second flexible element 105C are flexedbased on a change of a distance between the first base 101 and thesecond base 103.

Please also refer to FIG. 10E, which shows an operation schematicdiagram of the accessory 10 according to some embodiments of the presentinvention. Specifically, when the distance between the first base 101and the second base 103 increases (as shown by the arrows), the firstbase 101 pulls one end of the first flexible element 105B into motion.Since the first flexible element 105B passes through the space 1032defined by the baffle 1035 and the base body 1033, as one end of thefirst flexible element 105B moves with the first base 101, a deformationoccurs to the first flexible element 105B as shown in FIG. 10B, and suchdeformation can maintain a distance between one end of the first base101 and one end of the second base 103.

Please also refer to FIG. 10F, which shows another operation schematicdiagram of the accessory 10 according to some embodiments of the presentinvention. In contrast to the above-described operation, when thedistance between the first base 101 and the second base 103 decreases(as shown by the arrows), the first base 101 pushes one end of the firstflexible element 105B into motion. Since the first flexible element 105Bpasses through the space 1032 defined by the baffle 1035 and the basebody 1033, a deformation occurs to the first flexible element 105B forrestoring the first flexible element 105B to its original state when oneend of the first flexible element 105B moves with the first base 101.

Similarly, when the distance between the first base 101 and the secondbase 103 increases, the first base 101 pulls one end of the secondflexible element 105C into motion. Since the second flexible element105C passes through the space 1032 defined by the baffle 1035 and thebase body 1033, as one end of the second flexible element 105C moveswith the first base 101, a deformation occurs to the second flexibleelement 105C as shown in FIG. 10B, and such deformation can maintain thedistance between one end of the first base 101 and one end of the secondbase 103.

In contrast, when the distance between the first base 101 and the secondbase 103 decreases, the first base 101 pushes one end of the secondflexible element 105C into motion. Since the second flexible element105C passes through the space 1032 defined by the baffle 1035 and thebase body 1033, a deformation occurs to the second flexible element 105Cfor restoring the second flexible element 105C to its original statewhen one end of the second flexible element 105C moves with the firstbase 101.

In some embodiments, the support body 105A, the first flexible element105B and the second flexible element 105C may be independent components.In some embodiments, the support body 105A, the first flexible element105B and the second flexible element 105C may be integrally formed.

In some embodiments, as shown in FIG. 10G, the support assembly furtherincludes a first connecting element 105D and a second connecting element105E. The second connecting element 105E covers a joint between thefirst flexible element 105B and the support body 105A, and the firstconnecting element 105D covers a joint between the second flexibleelement 105C and the support body 105A, so as to reinforce theconnection strength of the first flexible element 105B and the secondflexible element 105C with the support body 105A. In some implementationexamples, the connecting elements 105D and 105E may include flexiblestrip elements, for example, adhesive tape.

In some embodiments, as shown in FIG. 10H and FIG. 10I, the first base101 may include a groove 101R for accommodating the support body 105A ofthe support assembly. In other words, when the support assembly isdisposed at the first base 101, the support body 105A is disposed in thegroove 101R of the first base 101, so that the first base 101 and thesecond base 103 can be more closely engaged while adjoining each other.

It should be noted that the fastener of the accessory of the presentinvention may include one or more fasteners, the track may include oneor more tracks corresponding to the number of the fastener(s), and thevalues given in the embodiments above are not to impose limitations onthe numbers of the track(s) or fastener(s).

The embodiments above are merely examples of implementation forms of thedisclosure to explain the technical features of the disclosure, and arenot to be construed as limitations to the scope of protection of thedisclosure. Any changes or equivalent arrangements that could be easilyaccomplished by a person skilled in the art are encompassed within thescope of the disclosure, and the scope of protection of the disclosureshall be defined by the appended claims.

What is claimed is:
 1. An accessory for a handheld device, comprising: a first base; a first flexible element and a second flexible element, respectively disposed at the first base; and a second base, having a body and a baffle, wherein the body and the baffle define at least one space therebetween, and the first flexible element and the second flexible element pass through the at least one space; wherein the first flexible element and the second flexible element are flexed based on a change of a distance between the first base and the second base.
 2. The accessory according to claim 1, wherein the at least one space comprises a first space and a second space, and the first flexible element and the second flexible element respectively pass through the first space and the second space.
 3. An accessory for a handheld device, comprising: a first base; a support assembly, comprising: a support body, disposed at the first base; a first flexible element, connected to one end of the support body; and a second flexible element, connected to another end of the support body; and a second base, having a base body and a baffle, wherein the base body and the baffle define a space therebetween, and the first flexible element and the second flexible element pass through the space; wherein the first flexible element and the second flexible element are flexed based on a change of a distance between the first base and the second base.
 4. The accessory according to claim 3, wherein the support assembly further comprises: a first connecting element, covering a joint between the first flexible element and the support body; and a second connecting element, covering a joint between the second flexible element and the support body. 